Notes, abstracts, papers, exams and problems of Other courses

Project Roadmap: Decentralized Space Renting on Blockchain

Creating a blockchain-based decentralized space renting project involves understanding key concepts and technologies. Here's a roadmap:

1. Blockchain Fundamentals

• Learn about blockchain technology, its principles, and how it works.
• Understand blocks, transactions, consensus mechanisms (PoW, PoS), smart contracts, and decentralization.

2. Solidity Programming

• Solidity is key for Ethereum smart contracts.
• Learn its syntax, data types, control structures, and best practices.
• Understand deployment and interaction with smart contracts on Ethereum.

3. Ethereum Platform

• Study Ethereum, a leading platform for DApps.
• Learn about Ethereum wallets, nodes, gas fees, and the Ethereum Virtual Machine (EVM).

To eat up – consumir, tragar-se

To give up – abandonar o rendir-se

To cut back on sth – reduir o recortar algo

To work on – treballar-hi / tratar de convencer

To turn down – rechazar

To keep up with – seguir el ritme

It isn’t everyone’s cup of tea – No a todo el mundo le gusta

To bite off more than I can chew – Morder más de lo que puedo masticar

To stuff yourself with sth – Atiborrarse de algo

It’s food for thought – algo que haria de ser pensat o tenir en compte

a broken heart – cor trencat

a heart of gold – cor d’or

a hearty meal – buena comida

from the bottom of your heart – de tot cor

good-hearted – de buen corazón

hand on heart – con la mano en el corazón

the heart of the matter – el cor del tema

To meet up

Theory of Computation

Automata Theory

Automata theory is a theoretical branch of computer science and mathematics that deals with the logic of computation using simple machines called automata. The main goal of automata theory is to develop methods for describing and analyzing the dynamic behavior of discrete systems. Automata consist of states (represented by circles) and transitions (represented by arrows).

Finite Automata

A finite automaton is an abstract computing device and a mathematical model of a system with discrete input, output, states, and a set of transitions between states that occur on input symbols from an alphabet. Finite automata are the simplest machines for pattern recognition, used to characterize regular languages, analyze... Continue reading "Theory of Computation: Automata, and Regular Expressions" »

1. The Canovas System and Its Foundations

1.1. Bases of the Canovas System

Cánovas' ideology drew inspiration from French doctrinal liberalism and Spanish moderatism. He advocated for a British-style system based on bipartisanship, where the Conservative Party and the Liberal Party would alternate in power and opposition.

This bipartisanship excluded Carlists and Republicans from the political system.

The intended peaceful alternation of power under Cánovas' system did not work as expected and became a facade. Both parties used pacts and a tacit agreement based on:

• Peaceful transfer of power
• Calling elections
• Electoral fraud

Electoral fraud involved caciquismo, encasillado, and pucherazo. Caciquismo refers to a pyramidal patronage network where high-... Continue reading "Understanding Spain's Political System: From the Canovas System to Opposition Movements" »

The Elephant and the Fox

A Good Lesson from Moral Stories

2 min read

Aug 25, 2023

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There were a fox and an elephant in a forest. The two lived very intimately, so much so that one could not leave the other. Across the river was a sugarcane field. One day, the elephant wanted to eat sugarcane.

The elephant said to the fox, "Today I want to eat sugarcane."

The fox replied, "Yes, I also want to eat. It has been a long day, and I have not eaten."

"But how do we cross the river? I can't swim," said the fox.

The elephant said, "I will carry you on my back."

The elephant carried the fox on his back and crossed the river. Together, they went to the sugarcane field. The fox ate quickly and got full, but the elephant's stomach did not get full. The... Continue reading "The Elephant and the Fox: A Story of Friendship and Revenge" »

Operations research (OR) is an analytical method of problem-solving and decision-making that is useful in the management of organizations. In operations research, problems are broken down into basic components and then solved in defined steps by mathematical analysis.

The process of operations research can be broadly broken down into the following steps:

1. Identifying a problem that needs to be solved.
2. Constructing a model around the problem that resembles the real world and variables.
3. Using the model to derive solutions to the problem.
4. Testing each solution on the model and analyzing its success.
5. Implementing the solution to the actual problem.

Disciplines that are similar to, or overlap with, operations research include statistical analysis, management... Continue reading "Operations Research: Definition, Characteristics, and Uses" »

The Role of Microbiology in Biotechnology

Microbiology plays a crucial role in biotechnology, as it provides the foundational knowledge and techniques needed to manipulate microorganisms for various applications. Here are some key aspects of microbiology in biotechnology:

Key Aspects of Microbiology in Biotechnology

1. Microbial Diversity

Microbiology helps in understanding the vast diversity of microorganisms, including bacteria, viruses, fungi, and archaea. This knowledge is essential for selecting suitable organisms for biotechnological processes.

2. Genetic Engineering

Microorganisms like bacteria and yeast are commonly used in genetic engineering techniques. This involves modifying the genetic material of these organisms to produce desired traits,... Continue reading "The Role of Microbiology in Biotechnology: Applications and Advancements" »

Mathematical Aptitude - Average

Question 1

The average age of 30 students is 9 years. If the age of their teacher is included, it becomes 10 years. The age of the teacher (in years) is

_______

(A) 31

(B) 35

(C) 40

(D) 43

Question 2

The average weight of 10 men is decreased by 3 kg when one of them whose weight is 80 kg is replaced by a new person. The weight of the new person is

_______

(A) 50

(B) 60

(C) 70

(D) 73

Question 3

The average of 17 numbers is 45. The average of the first 9 of these numbers is 51 and the last 9 of these numbers is 36. What is the ninth number?

(A) 14

(B) 16

(C) 18

(D) 20

Question 4

The average weight of 9 mangoes increases by 20 gm if one of them weighing 120 gm is replaced by another. The weight of the new mango is

________

(A) 180 gm

(B)... Continue reading "Mathematical Aptitude Test: Average Practice Questions" »